Catheter assemblies with sized sheaths
A grippable sheath for a catheter assembly is disclosed providing a sterile environment for a catheter. The grippable sheath may have a flattened diameter ranging from about 10 mm to about 50 mm. More specifically, the grippable sheath may have a flattened diameter ranging from about 15 mm to about 40 mm to provide improved usability and manipulability.
1 . A gripping device for a catheter, the device comprising:
a sheath surrounding a catheter; and
wherein the sheath is sized according to a diameter of the catheter and keeps the catheter in a sterile condition before and during insertion.
2 . The device of claim 1 , wherein the sheath has a flattened diameter ranging from about 10 mm to about 50 mm.
3 . The device of claim 2 , wherein a catheter diameter to flattened sheath diameter ratio ranges from about 1:3 to about 1:17.
4 . The device of claim 2 , wherein the sheath has a flattened diameter ranging from about 15 mm to about 40 mm.
5 . The device of claim 4 , wherein a catheter diameter to flattened sheath diameter ratio ranges from about 1:5 to about 1:13.
6 . A gripping device for a catheter assembly, the device comprising:
a sheath surrounding a catheter; and
wherein the sheath is sized according to a diameter of the catheter and is attached at its proximal and distal ends to the catheter assembly so as to form leak-free seals preventing fluid communication between the lumen of the sheath and the external environment.
7 . The device of claim 6 , wherein the sheath has a flattened diameter ranging from about 10 mm to about 50 mm.
8 . The device of claim 7 , wherein a catheter diameter to flattened sheath diameter ratio ranges from about 1:3 to about 1:17.
9 . The device of claim 7 , wherein the sheath has a flattened diameter ranging from about 15 mm to about 40 mm.
10 . The device of claim 9 , wherein a catheter diameter to flattened sheath diameter ratio ranges from about 1:5 to about 1:13.
11 . A gripping device for a catheter assembly, the device comprising:
a sheath surrounding a catheter; and
wherein the sheath has a diameter ranging from about 10 mm to about 50 mm.
12 . The device of claim 11 , wherein a catheter diameter to a flattened sheath diameter ratio ranges from about 1:3 to about 1:17.
13 . The device of claim 11 , wherein the sheath has a flattened diameter ranging from about 15 mm to about 40 mm.
14 . The device of claim 13 , wherein a catheter diameter to flattened sheath diameter ratio ranges from about 1:5 to about 1:13.
15 . The device of claim 11 , wherein the sheath is permeable.
16 . A catheter assembly, the assembly comprising:
a sheath surrounding a catheter;
wherein the sheath is attached at its proximal and distal ends to the catheter assembly so as to form leak-free seals preventing fluid communication between the lumen of the sheath and the external environment; and
wherein the sheath has a flattened diameter ranging from 15 mm to 40 mm.
17 . The assembly of claim 16 , wherein a catheter diameter to a flattened sheath diameter ratio ranges from about 1:3 to about 1:17.
18 . The device of claim 16 , wherein the sheath has a flattened diameter ranging from about 15 mm to about 40 mm.
19 . The device of claim 18 , wherein a catheter diameter to flattened sheath diameter ratio ranges from about 1:5 to about 1:13.
20 . The device of claim 16 , wherein the sheath is permeable.